(Click each subclass for details)
Subclass T
| T1-995 |
Technology (General) |
| T10.5-11.9 |
|
Communication of technical information |
| T11.95-12.5 |
|
Industrial directories |
| T55-55.3 |
|
|
Industrial safety. Industrial accident prevention |
| T55.4-60.8 |
|
Industrial engineering. Management engineering |
| T57-57.97 |
|
|
Applied mathematics. Quantitative methods |
| T57.6-57.97 |
|
|
|
Operations research. Systems analysis |
| T58.4 |
|
|
Managerial control systems |
| T58.5-58.64 |
|
|
Information technology |
| T58.6-58.62 |
|
|
Management information systems |
| T58.7-58.8 |
|
|
Production capacity. Manufacturing capacity |
| T59-59.2 |
|
|
Standardization |
| T59.5 |
|
|
Automation |
| T59.7-59.77 |
|
|
Human engineering in industry. Man-machine systems |
| T60-60.8 |
|
|
Work measurement. Methods engineering |
| T61-173 |
|
Technical education. Technical schools |
| T173.2-174.5 |
|
Technological change |
| T175-178 |
|
Industrial research. Research and development |
| T201-342 |
|
Patents. Trademarks |
| T351-385 |
|
Mechanical drawing. Engineering graphics |
| T391-995 |
|
Exhibitions. Trade shows. World's fairs |
Subclass TA
| TA1-2040 |
Engineering (General). Civil engineering (General) |
| TA164 |
|
Bioengineering |
| TA165 |
|
Engineering instruments, meters, etc. Industrial instrumentation |
| TA166-167 |
|
Human engineering |
| TA168 |
|
Systems engineering |
| TA170-171 |
|
Environmental engineering |
| TA174 |
|
Engineering design |
| TA177.4-185 |
|
Engineering economy |
| TA190-194 |
|
Management of engineering works |
| TA197-198 |
|
Engineering meteorology |
| TA213-215 |
|
Engineering machinery, tools, and implements |
| TA329-348 |
|
Engineering mathematics. Engineering analysis |
| TA349-359 |
|
Mechanics of engineering. Applied mechanics |
| TA365-367 |
|
Acoustics in engineering. Acoustical engineering |
| TA401-492 |
|
Materials of engineering and construction. Mechanics of materials |
| TA495 |
|
Disasters and engineering |
| TA501-625 |
|
Surveying |
| TA630-695 |
|
Structural engineering (General) |
| TA703-712 |
|
Engineering geology. Rock mechanics. Soil mechanics. Underground construction |
| TA715-787 |
|
Earthwork. Foundations |
| TA800-820 |
|
Tunneling. Tunnels |
| TA1001-1280 |
|
Transportation engineering |
| TA1501-1820 |
|
Applied optics. Photonics |
| TA2001-2040 |
|
Plasma engineering. Applied plasma dynamics |
Subclass TC
| TC1-978 |
Hydraulic engineering |
| TC160-181 |
|
Technical hydraulics |
| TC183-201 |
|
General preliminary operations. Dredging. Submarine building |
| TC203-380 |
|
Harbors and coast protective works. Coastal engineering. Lighthouses |
| TC401-506 |
|
River, lake, and water-supply engineering (General) |
| TC530-537 |
|
River protective works. Regulation. Flood control |
| TC540-558 |
|
Dams. Barrages |
| TC601-791 |
|
Canals and inland navigation. Waterways |
| TC801-978 |
|
Irrigation engineering. Reclamation of wasteland. Drainage |
| TC1501-1800 |
Ocean engineering |
Subclass TD
| TD1-1066 |
Environmental technology. Sanitary engineering |
| TD159-168 |
|
Municipal engineering |
| TD169-171.8 |
|
Environmental protection |
| TD172-193.5 |
|
Environmental pollution |
| TD194-195 |
|
Environmental effects of industries and plants |
| TD201-500 |
|
Water supply for domestic and industrial purposes |
| TD419-428 |
|
|
Water pollution |
| TD429.5-480.7 |
|
|
Water purification. Water treatment and conditioning. Saline water conversion |
| TD481-493 |
|
|
Water distribution systems |
| TD511-780 |
|
Sewage collection and disposal systems. Sewerage |
| TD783-812.5 |
|
Municipal refuse. Solid wastes |
| TD813-870 |
|
Street cleaning. Litter and its removal |
| TD878-894 |
|
Special types of environment
Including soil pollution, air pollution, noise pollution |
| TD895-899 |
|
Industrial and factory sanitation |
| TD896-899 |
|
|
Industrial and factory wastes |
| TD920-934 |
|
Rural and farm sanitary engineering |
| TD940-949 |
|
Low temperature sanitary engineering |
| TD1020-1066 |
|
Hazardous substances and their disposal |
Subclass TE
| TE1-450 |
Highway engineering. Roads and pavements |
| TE175-176.5 |
|
Highway design. Interchanges and intersections |
| TE177-178.8 |
|
Roadside development. Landscaping |
| TE200-205 |
|
Materials for roadmaking |
| TE206-209.5 |
|
Location engineering |
| TE210-228.3 |
|
Construction details
Including foundations, maintenance, equipment |
| TE250-278.8 |
|
Pavements and paved roads |
| TE279 |
|
Streets |
| TE279.5-298 |
|
Pedestrian facilities |
| TE280-295 |
|
|
Sidewalks. Footpaths. Flagging |
| TE298 |
|
|
Curbs. Curbstones |
Subclass TF
| TF1-1620 |
Railroad engineering and operation |
| TF200-320 |
|
Railway construction |
| TF340-499 |
|
Railway equipment and supplies |
| TF501-668 |
|
Railway operation and management |
| TF670-851 |
|
Local and light railways |
| TF840-851 |
|
|
Elevated railways and subways |
| TF855-1127 |
|
Electric railways |
| TF1300-1620 |
|
High speed ground transporation |
Subclass TG
| TG1-470 |
Bridge engineering |
Subclass TH
| TH1-9745 |
Building construction |
| TH845-895 |
|
Architectural engineering. Structural engineering of buildings |
| TH900-915 |
|
Construction equipment in building |
| TH1000-1725 |
|
Systems of building construction
Including fireproof construction, concrete construction |
| TH2025-3000 |
|
Details in building design and construction
Including walls, roofs |
| TH3301-3411 |
|
Maintenance and repair |
| TH4021-4977 |
|
Buildings: Construction with reference to use
Including public buildings, dwellings |
| TH5011-5701 |
|
Construction by phase of the work (Building trades) |
| TH6014-6081 |
|
Environmental engineering of buildings. Sanitary engineering of buildings |
| TH6101-6887 |
|
Plumbing and pipefitting |
| TH7005-7699 |
|
Heating and ventilation. Air conditioning |
| TH7700-7975 |
|
Illumination. Lighting |
| TH8001-8581 |
|
Decoration and decorative furnishings |
| TH9025-9745 |
|
Protection of buildings
Including protection from dampness, fire, burglary |
Subclass TJ
| TJ1-1570 |
Mechanical engineering and machinery |
| TJ163.13-163.25 |
|
Power resources |
| TJ163.26-163.5 |
|
Energy conservation |
| TJ170-179 |
|
Mechanics applied to machinery. Dynamics |
| TJ181-210 |
|
Mechanical movements |
| TJ210.2-211.47 |
|
Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General) |
| TJ212-225 |
|
Control engineering systems. Automatic machinery (General) |
| TJ227-240 |
|
Machine design and drawing |
| TJ241-254.7 |
|
Machine construction (General) |
| TJ255-265 |
|
Heat engines |
| TJ266-267.5 |
|
Turbines. Turbomachines (General) |
| TJ268-740 |
|
Steam engineering |
| TJ603-695 |
|
|
Locomotives |
| TJ751-805 |
|
Miscellaneous motors and engines
Including gas, gasoline, diesel engines |
| TJ807-830 |
|
Renewable energy sources |
| TJ836-927 |
|
Hydraulic machinery |
| TJ940-940.5 |
|
Vacuum technology |
| TJ950-1030 |
|
Pneumatic machinery |
| TJ1040-1119 |
|
Machinery exclusive of prime movers |
| TJ1125-1345 |
|
Machine shops and machine shop practice |
| TJ1350-1418 |
|
Hoisting and conveying machinery |
| TJ1425-1475 |
|
Lifting and pressing machinery |
| TJ1480-1496 |
|
Agricultural machinery. Farm machinery |
| TJ1501-1519 |
|
Sewing machines |
Subclass TK
| TK1-9971 |
Electrical engineering. Electronics. Nuclear engineering |
| TK301-399 |
|
Electric meters |
| TK452-454.4 |
|
Electric apparatus and materials. Electric circuits. Electric networks |
| TK1001-1841 |
|
Production of electric energy or power. Powerplants. Central stations |
| TK2000-2891 |
|
Dynamoelectric machinery and auxiliaries
Including generators, motors, transformers |
| TK2896-2985 |
|
Production of electricity by direct energy conversion |
| TK3001-3521 |
|
Distribution or transmission of electric power |
| TK4001-4102 |
|
Applications of electric power |
| TK4125-4399 |
|
Electric lighting |
| TK4601-4661 |
|
Electric heating |
| TK5101-6720 |
|
Telecommunication
Including telegraphy, telephone, radio, radar, television |
| TK7800-8360 |
|
Electronics |
| TK7885-7895 |
|
|
Computer engineering. Computer hardware |
| TK8300-8360 |
|
|
Photoelectronic devices (General) |
| TK9001-9401 |
|
Nuclear engineering. Atomic power |
| TK9900-9971 |
|
Electricity for amateurs. Amateur constructors' manuals |
Subclass TL
| TL1-4050 |
Motor vehicles. Aeronautics. Astronautics |
| TL1-484 |
|
Motor vehicles. Cycles |
| TL500-777 |
|
Aeronautics. Aeronautical engineering |
| TL780-785.8 |
|
Rocket propulsion. Rockets |
| TL787-4050 |
|
Astronautics. Space travel |
Subclass TN
| TN1-997 |
Mining engineering. Metallurgy |
| TN263-271 |
|
Mineral deposits. Metallic ore deposits. Prospecting |
| TN275-325 |
|
Practical mining operations. Safety measures |
| TN331-347 |
|
Mine transportation, haulage and hoisting. Mining machinery |
| TN400-580 |
|
Ore deposits and mining of particular metals |
| TN600-799 |
|
Metallurgy |
| TN799.5-948 |
|
Nonmetallic minerals |
| TN950-997 |
|
Building and ornamental stones |
Subclass TP
| TP1-1185 |
Chemical technology |
| TP155-156 |
|
Chemical engineering |
| TP200-248 |
|
Chemicals: Manufacture, use, etc. |
| TP248.13-248.65 |
|
Biotechnology |
| TP250-261 |
|
Industrial electrochemistry |
| TP267.5-301 |
|
Explosives and pyrotechnics |
| TP315-360 |
|
Fuel |
| TP368-456 |
|
Food processing and manufacture |
| TP480-498 |
|
Low temperature engineering. Cryogenic engineering. Refrigeration |
| TP500-660 |
|
Fermentation industries. Beverages. Alcohol |
| TP670-699 |
|
Oils, fats, and waxes |
| TP690-692.5 |
|
|
Petroleum refining. Petroleum products |
| TP700-746 |
|
Illuminating industries (Nonelectric) |
| TP751-762 |
|
Gas industry |
| TP785-869 |
|
Clay industries. Ceramics. Glass |
| TP875-888 |
|
Cement industries |
| TP890-933 |
|
Textile bleaching, dyeing, printing, etc. |
| TP934-945 |
|
Paints, pigments, varnishes, etc. |
| TP1080-1185 |
|
Polymers and polymer manufacture |
Subclass TR
| TR1-1050 |
Photography |
| TR250-265 |
|
Cameras |
| TR287-500 |
|
Photographic processing. Darkroom technique |
| TR504-508 |
|
Transparencies. Diapositives |
| TR510-545 |
|
Color photography |
| TR550-581 |
|
Studio and laboratory |
| TR590-620 |
|
Lighting |
| TR624-835 |
|
Applied photography
Including artistic, commercial, medical photography, photocopying processes |
| TR845-899 |
|
Cinematography. Motion pictures |
| TR925-1050 |
|
Photomechanical processes |
Subclass TS
| TS1-2301 |
Manufactures |
| TS155-194 |
|
Production management. Operations management |
| TS195-198.8 |
|
Packaging |
| TS200-770 |
|
Metal manufactures. Metalworking |
| TS780-788 |
|
Stonework |
| TS800-937 |
|
Wood technology. Lumber |
| TS840-915 |
|
|
Wood products. Furniture |
| TS920-937 |
|
|
Chemical processing of wood |
| TS940-1047 |
|
Leather industries. Tanning |
| TS1060-1070 |
|
Furs |
| TS1080-1268 |
|
Paper manufacture and trade |
| TS1300-1865 |
|
Textile industries |
| TS1870-1935 |
|
Rubber industry |
| TS1950-1982 |
|
Animal products |
| TS2120-2159 |
|
Cereals and grain. Milling industry |
| TS2220-2283 |
|
Tobacco industry |
| TS2284-2288 |
|
Animal feeds and feed mills. Pet food industry |
Subclass TT
| TT1-999 |
Handicrafts. Arts and crafts |
| TT161-170.7 |
|
Manual training. School shops |
| TT174-176 |
|
Articles for children |
| TT180-200 |
|
Woodworking. Furniture making. Upholstering |
| TT201-203 |
|
Lathework. Turning |
| TT205-267 |
|
Metalworking |
| TT300-382.8 |
|
Painting. Wood finishing |
| TT387-410 |
|
Soft home furnishings |
| TT490-695 |
|
Clothing manufacture. Dressmaking. Tailoring |
| TT697-927 |
|
Home arts. Homecrafts
Including sewing, embroidery, decorative crafts |
| TT950-979 |
|
Hairdressing. Beauty culture. Barbers' work |
| TT980-999 |
|
Laundry work |
Subclass TX
| TX1-1110 |
Home economics |
| TX301-339 |
|
The house
Including arrangement, care, servants |
| TX341-641 |
|
Nutrition. Foods and food supply |
| TX642-840 |
|
Cooking |
| TX851-885 |
|
Dining-room service |
| TX901-946.5 |
|
Hospitality industry. Hotels, clubs, restaurants, etc. Food service |
| TX950-953 |
|
Taverns, barrooms, saloons |
| TX955-985 |
|
Building operation and housekeeping |
| TX1100-1105 |
|
Mobile home living |
| TX1110 |
|
Recreational vehicle living |
